CN216886916U

CN216886916U - Promote side stiffening beam and vehicle of little offset collision performance

Info

Publication number: CN216886916U
Application number: CN202220245495.4U
Authority: CN
Inventors: 邱忠财; 唐丙荣; 白支飞; 崔泰松; 张彬
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-01-30
Filing date: 2022-01-30
Publication date: 2022-07-05
Anticipated expiration: 2032-01-30

Abstract

The utility model discloses a side edge reinforcing beam for improving small offset collision performance and a vehicle. The vehicle small offset energy absorption device can realize bending force-unloading energy absorption and improve the small offset collision performance of the vehicle.

Description

Promote side stiffening beam and vehicle of little offset collision performance

Technical Field

The utility model relates to a part at the front part of a vehicle body, in particular to a side reinforcing beam for improving small offset collision performance and a vehicle.

Background

At present, a side reinforcing beam of a passenger car body has insufficient strength under a small offset working condition, less bearing force and insufficient energy absorption; or the intensity is too big, plays the effect of sliding ring, promotes the automobile body and keeps away from the barrier, protects the passenger. If the strength of the side reinforcing beam is too weak, force transmission and energy absorption are insufficient, so that the side A column of the passenger compartment contacts with the barrier at a higher speed, the invasion amount of the passenger compartment is large, and great passenger injury is caused. To make the side reinforcement beam strong to function as a slip ring requires the passenger compartment side a-pillar to match the side reinforcement beam with a higher strength, which requires higher manufacturing costs. If the matching strength of the side wall A column of the passenger compartment is not enough, the high-strength side reinforcing beam has small energy absorption, and larger collision force is directly transmitted to the side wall A column of the passenger compartment, so that the vehicle body cannot be pushed to be far away from a barrier, and the larger invasion amount of the passenger compartment can be caused.

Disclosure of Invention

The utility model aims to provide a side reinforcing beam for improving small offset collision performance and a vehicle, which can realize bending force unloading and energy absorption and improve the small offset collision performance of the vehicle.

The side reinforcing beam for improving the small offset collision performance comprises a side reinforcing beam body, wherein the side reinforcing beam body comprises an outer plate and an inner plate which are connected in a buckling mode, a cavity is formed between the outer plate and the inner plate, two reinforcing pieces are fixed on the inner side of the rear portion of the outer plate, and the two reinforcing pieces are arranged at intervals along the front-rear direction of the outer plate.

Furthermore, the section of the outer plate is L-shaped and comprises a horizontal plate and a vertical plate extending downwards from the outer edge of the horizontal plate, and the reinforcing part and the inner side surface of the rear part of the outer plate are designed along with the shape.

Further, the reinforcing piece is welded and fixed with the inner side face of the rear part of the outer plate.

Furthermore, the front edge and the rear edge of the reinforcing piece are provided with reinforcing flanges.

A vehicle comprises the side reinforcing beam for improving the small offset collision performance.

According to the utility model, the two reinforcing parts are fixed on the inner side of the rear part of the outer plate of the side reinforcing beam body and are arranged at intervals along the front and rear directions of the outer plate, when a small offset collision occurs to a vehicle body, the force transmitted by the side reinforcing beam body is increased, so that the outer plate of the side reinforcing beam body is bent towards the outside direction of the vehicle in the area between the two reinforcing parts, and the force unloading and energy absorption are realized through the bending. And a plastic hinge which takes the lap joint of the rear end of the side reinforcing beam body and the side wall A column as a fulcrum and takes the reinforcing piece as a beam is formed, and the moment in the Y direction after bending enables the reinforcing piece to rotate around the fulcrum, so that the vehicle body generates displacement in the Y direction and is far away from a collision object. And the collision force is transmitted to the side of the passenger through parts such as the launder, the steering support and the like, so that the collision force is prevented from being directly transmitted to the side wall A column through the side edge reinforcing beam body during small offset collision, and the immersion amount of the passenger compartment is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the side reinforcing beam body of the present invention;

FIG. 3 is a schematic structural view of the reinforcing member of the present invention;

fig. 4 is an assembly view of the side reinforcing beam body according to the present invention.

In the figure, 1-a side reinforcing beam body, 11-an outer plate, 111-a horizontal plate, 112-a vertical plate, 2-a reinforcing piece, 21-a reinforcing flange, 3-a side wall column and 4-a rigid barrier.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, the side reinforcing beam for improving the small offset collision performance comprises a side reinforcing beam body 1, wherein the side reinforcing beam body 1 and a front longitudinal beam are arranged at intervals, the side reinforcing beam body 1 is positioned outside the front longitudinal beam, the rear end of the side reinforcing beam body 1 is welded and fixed with a side wall a column, the rear end of the side reinforcing beam body 1 is fixedly connected with a transverse plate, and the transverse plate is also fixedly connected with the front end of the front longitudinal beam.

The side reinforcing beam body 1 comprises an outer plate 11 and an inner plate which are connected in a buckling mode, a cavity is formed between the outer plate 1 and the inner plate, the inner plate is not shown in the drawing, and lap-joint flanges which are welded with each other are arranged on the upper edge and the lower edge of the outer plate 11 and the upper edge and the lower edge of the inner plate. The outer plate 11 has an L-shaped cross section and includes a horizontal plate 11 and a vertical plate 112 extending downward from the outer edge of the horizontal plate 111.

Two reinforcing parts 2 are welded and fixed on the inner side of the rear part of the outer plate 11, and the reinforcing parts and the inner side surface of the rear part of the outer plate are designed in a shape following mode. The two reinforcing members 2 are arranged at intervals in the front-rear direction of the outer plate, and the distance between the rear edge of the front reinforcing member and the front edge of the rear reinforcing member is 32 mm. The distance between the two reinforcements 2 can also be adjusted in accordance with the size of the outer panel 11, provided that the outer panel 11 is bent in the vehicle exterior direction in the region between the two reinforcements 2 at the time of a small offset collision.

In order to improve the structural strength of the reinforcing member 2 itself, reinforcing flanges 21 are provided at the front and rear edges of the reinforcing member 2.

Referring to fig. 4, during a small offset collision test, as the rigid barrier 4 gradually immerses into the vehicle body, the force transmitted by the side reinforcing beam body 1 becomes larger and larger, the deformation also becomes larger and larger, the outer plate of the side reinforcing beam body 1 begins to be bent towards the direction outside the vehicle in the area between the two reinforcing parts 2, and the efficacy of force unloading and energy absorption is achieved through bending. And a plastic hinge which takes the lap joint of the rear end of the side reinforcing beam body 1 and the side wall A column 3 as a fulcrum and takes the reinforcing piece 2 as a beam is formed at the bending part, and the moment in the Y direction after bending enables the reinforcing piece 2 to rotate around the fulcrum, so that the vehicle body generates displacement in the Y direction and is far away from an impact object. And the collision force is transmitted to the side of the passenger through parts such as the launder, the steering support and the like, so that the collision force is prevented from being directly transmitted to the side wall A column through the side edge reinforcing beam body during small offset collision, and the immersion amount of the passenger compartment is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a promote little offset impact property's side stiffening beam, includes side stiffening beam body (1), side stiffening beam body (1) include planking (11) and the inner panel that the lock is connected just form the cavity between planking (11) and the inner panel, its characterized in that: two reinforcing parts (2) are fixed on the inner side of the rear part of the outer plate (11), and the two reinforcing parts (2) are arranged at intervals along the front-back direction of the outer plate (11).

2. The side reinforcement beam for improving small offset collision performance according to claim 1, wherein: the cross section of the outer plate (11) is L-shaped, the outer plate comprises a horizontal plate (111) and a vertical plate (112) extending downwards from the outer edge of the horizontal plate (111), and the reinforcing piece (2) and the inner side surface of the rear part of the outer plate (11) are designed to follow the shape.

3. The side reinforcing beam for improving small offset collision performance according to claim 1 or 2, characterized in that: the reinforcing piece (2) is welded and fixed with the inner side face of the rear part of the outer plate (11).

4. The side reinforcing beam for improving small offset collision performance according to claim 1 or 2, characterized in that: the front edge and the rear edge of the reinforcing piece (2) are provided with reinforcing flanges (21).

5. A vehicle, characterized in that: the side reinforcing beam for improving the small offset collision performance comprises the side reinforcing beam as set forth in any one of claims 1 to 4.